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Use dcr_host_t.base in dcr_unmap()

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With the base stored in dcr_host_t, there's no need for callers to pass
the dcr_n into dcr_unmap(). In fact this removes the possibility of them
passing the incorrect value, which would then be iounmap()'ed.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Michael Ellerman
2007-10-15 19:34:37 +10:00
committed by Jeff Garzik
parent 83f34df4e7
commit cdbd3865ac
4 changed files with 5 additions and 5 deletions
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2
include/asm-powerpc/dcr-mmio.h
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@ -33,7 +33,7 @@ typedef struct {
extern dcr_host_t dcr_map(struct device_node *dev, unsigned int dcr_n,
unsigned int dcr_c);
extern void dcr_unmap(dcr_host_t host, unsigned int dcr_n, unsigned int dcr_c);
extern void dcr_unmap(dcr_host_t host, unsigned int dcr_c);
static inline u32 dcr_read(dcr_host_t host, unsigned int dcr_n)
{

2
include/asm-powerpc/dcr-native.h
View File

@ -29,7 +29,7 @@ typedef struct {
#define DCR_MAP_OK(host) (1)
#define dcr_map(dev, dcr_n, dcr_c) ((dcr_host_t){ .base = (dcr_n) })
#define dcr_unmap(host, dcr_n, dcr_c) do {} while (0)
#define dcr_unmap(host, dcr_c) do {} while (0)
#define dcr_read(host, dcr_n) mfdcr(dcr_n + host.base)
#define dcr_write(host, dcr_n, value) mtdcr(dcr_n + host.base, value)